Electrical coupling.



O. H. BISSELL.

ELECTRICAL COUPLING.

APPLICATION FILED JULY 25, 1910.

Patented Aug. 18, 1914:.

WITNESSES:

UNITED STATES PATENT OFFICE.

CARL H. BISSELL, OF SYRACUSE, NEVJ YORK, ASSIGNOR TO CROUSE-HINDSCOMPANY, QISYRACUSE, NEW YORK. A CORPORATION OF 'NEW YORK.

ELECTRICAL COUPLING.

T 0 all whom it may concern Be it known that I, CARL H. BIssELL, ofSyracuse. in the county of Onondaga and State of New York. have inventeda certain new and useful ElectricatCoupling, of which the following is aspecification.

My invention relates to electrical couplings, and the object thereof isto provide a simple. durable and efiicient device for connecting twoconductors to each other, or one conductor to a suitable support; and itconsists in the combinations and constructions hereinafter set forth andclaimed.

In describing this invention, reference is had to the accompanyingdrawings, in which like characters designate corresponding parts in allthe views.

Figure 1 is an elevation, partly broken away and. in section, of oneform of this coupling and two conductors connected thereby. Fig. 2 is anend elevation. partly in section. of parts seen in Fig. 1. Fig. 3 is anend elevation, partly in section, of the detached coupling, one of thesections of the band or strap member being shown as disconnected fromthe nut and swung upwardly. Fig. l is a side elevation of the mainmember of the coupling.

This coupling comprises generally a sectional band or strap member, amain memer having means coacting with the band or strap member forclamping a conductor passing through the bore of the band or strapmember, said main member also hav ing means for engaging a secondconductor or su ort. and a nut for coactin with the two members. v 1

Ini'fthe illustrated embodiment of my invention, the band or strapmember comprises two; segmental sections 1 and 2 pivotally connected atcorresponding ends to, each other,'as at 3, and provided at their freeends with opposing, laterally extending,.extcrnally threaded projections4 and 5.

The main-member of the coupling is provided at one end with a head 6having an arcuate surface 7 for engaging a conductor S extending throughthe bore. of the band or strap member. is provided at its opposite end 9with a threaded portion 10 and with means for engaging a secondconductor or support 11, and is provided intermediate of the head 6 andthe end 9 with a shank 12. In this exemplification of my invention, themeans associated with the end 9 of the main Specification of LettersPatent. Patented Aug, 18, 1914,

Application filed July 25. 1910. Serial N0. 573,692.

member for engaging a second conductor or support 11 comprises a.contractible sleeve 13 having a tapering periphery complemental to asocket or bore H in the end 9, and a nut 15 turning on the lower part ofthe threaded portion 10 and provided with a shoulder 16 for engaging theend of the sleeve 13 and forcing the latter into the socket 11 andthereby contracting the sleeve 13 about the end of the conductor orsupport 11.

The head 6 of the main member of the coupling is designed to operatebetween the sections 1 and 2 of the band or strap memher, or within thebore of said member, and is disposed with its greater length parallel tothe axis of such bore, and the surface 7 thereof is designed tocooperate with the inner faces of the sections 1 and 2 so that theconductor 8 would be firmly engaged substantially at all points aboutthe part of its periphery located between said sections 1 and 2.

The nut 17 associated with the band and main members of the couplingserves to force these parts into clamping position, and also to secureone of the sections of the band member against separation from the mainmember of the coupling while permitting the movement of the othersection of the band member about the pivot 3 to admit the conductor 8within the bore of the band member; and this nut when properly adj ustedadmits of the band member being entirely separated from the main member.In the accompanying drawing this nut 17 engages the threaded portion 10of the main member and the threads of the projections 4:. and 5, andwhen the nut 17 is screwed above the threaded portion 10 and engagedwith the threads of the projections l and 5 as illustrated in Figs. 1and 2 .the upper edge of the nut coacts with shoulders 18 which areprovided on the head 6 and project laterally beyond opposite sides ofthe shank 12 and between and beyond the contiguous faces of the threadedprojections 4 and 5. Consequently, as the nut 17 is screwed toward thehead 6, the surface 7 of the main member and the inner faces of thesections 1 and 2 of the band member are forced into firm contact withthe conductor 8 extending through the band or sleeve member.

The inner faces of the project-ions 4 and 5 are flat, and opposite sidesof the shank 12 are formed with longitudinal recesses 19 having flatfaces which are disposed in sub- 1 stantially the same planes as thesides of the shoulders 18 and engage the fiat faces of the projections 4and 5, one recess 19 extending lengthwise of the shank 12 to thethreaded portion 10 of the main member and receiving the longerprojection 5, and the other recess 19 being of less length and receivingthe shorter projection 4. The sides of the intermediate portion of themain member beneath the shoulders 18 are of less diameter than thethreaded ends of the projections 4 and 5 so that thenut 17 passes freelyover such sides. Owing to the broad fiat faces 19 of the shank 12 Widebearings are provided for the projections 4:, 5 and twisting or movementof the projections 1, 5 and parts carried thereby relatively to eachother during the turning of the nut 17 onto the projections 4, 5, isprevented, and further owing to such flat faces, the shank 12 andsections t, 5 can be more economically manufactured than if the faces 19were of other shape and the sections at, 5 provided with depressions forreceiving projecting portions of the shank. As the nut 17 is turned inone direction, it engages the shoulders 18, and being then engaged withthe projections 4 and 5, effects relative movement of the band and mainmembers of the coupling for clamping the conductor 8 between the surface7 and the opposing faces of the band member. Upon turning the nut 17 inthe reverse direction, the same engages the threaded portion 10 of themain member and when said nut is sufficiently turned in such reversedirection, it is disengaged from the projection 1, thus permitting thesection 1 of the band member to be swung upwardly to remove or admit theconductor 8, and at the same time the projection 5 is engaged by the nut17, thus uniting the band and main members of the coupling. Bycontinuing this reverse movement of the nut 17 it will be disengagedfrom the projection 5, thus permitting the removal of the band memberfrom the main member of the coupling.

What I claim, is

1. In an electrical coupling, a band member comprising two sectionspivota-lly connected to each other at corresponding ends and provided attheiropposite ends with externally threaded projections having opposingfiat faces, a main member having at one end an engaging surface forcoiiperating with the inner faces of said sections to clamp a conductorand having at its oppo site end a threaded portion, the main memberhaving opposite sides of its intermediate portion formed withlongitudinal recesses for receiving said projections, the recesseshaving fiat bottom faces for engaging the opposite fiat faces of saidpro ections, and

a nut for engaging the externally threaded projections and the threadedportion of the main member, substantially as and for the purposedescribed.

2. In an electrical coupling, a band member comprising two sectionspivotally connected to each other at corresponding ends and provided attheir opposite ends with externally threaded projections having opposingfl-at faces, a main member having at one end engaging surfaces forcooperating with the inner faces of said sections to clamp a conductor,and having at its opposite end a threaded portion, the main member alsohaving opposite sides of its intermediate port-ion formed flat forreceiving the thread ed projections with their flat faces engaged withthe fiat sides of said intermediate por tion and their threadedperipheries coincident with the threaded periphery of said main member,and a nut turning on the threaded portion of the main member and ontosaid projections, substantially as and for the purpose specified. j

3. In an electrical coupling, a band member comprising two sections,movably connected to each other at corresponding ends and provided attheir opposite ends with opposing externally threaded projections havingfiat inner faces, a main member having at one end a head having a partfor cooperating with the band member to clamp a conductor and having atits opposite end a threaded portion, the main member also having theopposing sides of its intermediate portion formed with longitudinalrecesses for receiving the externally threaded projections, and saidhead being provided with shoulders extending laterally beyond saidprojections and the shank, the recesses having fiat bottoms for engagingthe flat inner faces of said projections, the head and the shouldersthereof also having flat faces located in the plane of the flat bottomsof said recesses for engaging the inner faces of said projections, and anut for engaging the externally threaded projections, and threadedportion of the main member and bearing against said shoulders,substantially as and for the purpose specified. a

In testimony whereof. I have hereunto signed my name in the presence oftwo attesting witnesses, at Syracuse. in the county of Onondaga, in theState of New York, this 20th day of July, 1910.

CARL H. BISSELL.

Witnesses:

GENEVIEVE B. SMITH, S. DAVIS.

